Aquariumpro
🔍
RegionFreshwaterSaltwaterBrackish

The Americas

From the Amazon's blackwater basins to Caribbean reefs — the Americas hold the most popular freshwater biotopes and a wealth of Atlantic and Pacific saltwater life.

1,013 species

King Angelfish

King Angelfish

Fish

Holacanthus passer

A bold Eastern Pacific angel with a single dramatic white stripe across its flank.

King Conch

King Conch

Invert

Aliger gigas

A gentle giant of the seafloor, with one of the most iconic shells in the ocean.

Kissing Prochilodus

Kissing Prochilodus

Fish

Semaprochilodus insignis

A migratory Amazon grazer that plays a surprising ecological role in the wild.

Knife Livebearer

Knife Livebearer

Fish

Alfaro cultratus

A tough little livebearer with a blade-like keel and a feisty personality.

Knobbed Brain Coral

Knobbed Brain Coral

Coral

Pseudodiploria clivosa

A hardy Caribbean brain coral with distinctively ridged, knobby colonies.

Knobbed Zoanthidean
✨AI

Knobbed Zoanthidean

Coral

Palythoa mammillosa

A hardy Atlantic zoanthid with a distinctively bumpy, textured colony surface.

Knobby Cactus Coral

Knobby Cactus Coral

Coral

Mycetophyllia aliciae

A hardy Caribbean plate coral with bold texture and an easygoing nature.

Knobby Candelabra

Knobby Candelabra

Coral

Eunicea clavigera

A branching Caribbean gorgonian with distinctive knobbly texture and candelabra growth.

Knobby Candelabra

Knobby Candelabra

Coral

Eunicea tourneforti

A branching Caribbean gorgonian with bold, bumpy texture and dramatic candelabra form.

Knobby Candelabrum

Knobby Candelabrum

Coral

Eunicea calyculata

A branching sea rod with distinctive knobbly texture, straight from Caribbean reefs.

Knob Coral

Knob Coral

Coral

Favia gravida

A compact Atlantic coral with tidy, rounded corallites and a warm pale orange hue.

Knob Coral
✨AI

Knob Coral

Coral

Mussismilia leptophylla

A hardy Brazilian reef coral with a distinctively knobbed, sculptural form.

Knobnose Whiptail Catfish

Knobnose Whiptail Catfish

Fish

Hemiodontichthys acipenserinus

The only catfish where dad carries the eggs on his lips.

Krauss' Basketmouth
✨AI

Krauss' Basketmouth

Fish

Caquetaia kraussii

A predatory Colombian cichlid that lurks in swamps and ambushes its prey.

Krieg's Mini Tetra
✨AI

Krieg's Mini Tetra

Fish

Odontostilbe kriegi

A small, peaceful South American schooler that thrives in the mid-water column.

Kumakuma
✨AI

Kumakuma

Fish

Brachyplatystoma filamentosum

One of the largest freshwater fish on Earth, and reportedly a danger to humans.

Kyburz Tetra
✨AI

Kyburz Tetra

Fish

Pseudochalceus kyburzi

A peaceful Colombian schooler with a nippy streak worth planning around.

L12
✨AI

L12

Fish

Ancistomus feldbergae

A rock-dwelling Xingu pleco that grazes algae by night and hides by day.

L128

L128

Fish

Hemiancistrus sp

A spot-patterned Orinoco pleco with a taxonomic identity that's still up for debate.

L200

L200

Fish

Baryancistrus demantoides

A territorial Venezuelan pleco with vivid spots and a noticeably tall dorsal fin.

L234

L234

Fish

Megalancistrus sp. "L234"

A massive, aggressive pleco from eastern Brazil that demands respect and space.

L239
✨AI

L239

Fish

Baryancistrus beggini

A tiny, dark-bodied pleco with an iridescent blue sheen from Guyana Shield rapids.

L260

L260

Fish

Hypancistrus sp. "L260"

A fine-patterned Tapajós pleco that breeds readily and stays compact.

Lace Lettuce Coral
✨AI

Lace Lettuce Coral

Coral

Leptoseris cailleti

A deep-water Atlantic coral bringing unusual twisted fronds to low-light reef tanks.

Lacrimostigmata Cory
✨AI

Lacrimostigmata Cory

Fish

Corydoras lacrimostigmata

A tiny armored catfish that may mimic its wild neighbors to blend in.

Lamarck's sheet coral

Lamarck's sheet coral

Coral

Agaricia lamarcki

A low-light Caribbean plate coral with distinctive white star-shaped mouths.

Lambert's cory
✨AI

Lambert's cory

Fish

Corydoras lamberti

A rare and enigmatic armored catfish from the Peruvian Amazon, best kept in groups.

Large Cactus Coral

Large Cactus Coral

Coral

Mycetophyllia lamarckiana

A Caribbean reef plate coral with a wonderfully textured, cactus-like surface.

Large Flower Coral

Large Flower Coral

Coral

Mussa angulosa

A bold Caribbean coral with fleshy, dramatic polyps suited to most reef setups.

Largespot River Stingray

Largespot River Stingray

Fish

Potamotrygon falkneri

A venomous freshwater predator that can learn to recognize its keeper.

Lattice Dwarf Cichlid

Lattice Dwarf Cichlid

Fish

Nannacara taenia

A quietly charming dwarf cichlid hiding some fascinating breeding behavior beneath plain looks.

Laulao Catfish
✨AI

Laulao Catfish

Fish

Brachyplatystoma vaillantii

A river giant that needs a seriously big tank and equally big tankmates.

Leaf Coral

Leaf Coral

Coral

Agaricia agaricites

A low-light Caribbean coral that forms sweeping plates and fronds in earth tones.

Leaf Coral

Leaf Coral

Coral

Agaricia grahamae

A low-light reef plate coral that layers into graceful whorled formations.

Leaf Coral

Leaf Coral

Coral

Pavona chiriquiensis

A low-light Pacific coral with a textured, ridge-covered surface in earthy tones.

Leaf Coral

Leaf Coral

Coral

Pavona gigantea

A tough, low-light coral that thrives where other stony corals struggle.